Reactivatable binders for binding particles to fibers
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
D02G-003/00
출원번호
US-0261811
(1994-06-17)
발명자
/ 주소
Hansen Michael R. (Seattle WA) Young
Sr. Richard H. (Renton WA)
출원인 / 주소
Weyerhaeuser Company (Federal Way WA 02)
인용정보
피인용 횟수 :
80인용 특허 :
0
초록▼
Particles, such as superabsorbent particles, are bound to fibers, such as cellulosic fibers, by a binder that has a volatility less than water. The binder has a functional group capable of forming a hydrogen bond with the fibers, and a functional group that is capable of forming a hydrogen bond or a
Particles, such as superabsorbent particles, are bound to fibers, such as cellulosic fibers, by a binder that has a volatility less than water. The binder has a functional group capable of forming a hydrogen bond with the fibers, and a functional group that is capable of forming a hydrogen bond or a coordinate covalent bond with the particles. The binder is activated or reactivated by addition of heat, liquid, or mechanical energy. Therefore, fibers treated with binder may be shipped to a distribution point before particles are bound to the fibers. The binder may be a polymeric binder selected from the group consisting of polyethylene glycol, polypropylene glycol, poly (caprolactone) diol, polyacrylic acid, polyamides and polyamines. The polymeric binder has a hydrogen bonding functionality or coordinate covalent bond forming functionality on each repeating unit of the polymeric binder. Alternatively, the binder may be a non-polymeric organic binder that includes a functionality such as a carboxylic acid, an aldehyde, an alcohol, an amino acid, an amide, and an amine, wherein there are at least two such functionalities on the molecule. Particles attached to the fibers in this manner are firmly adhered and are not easily dislodged. Fibrous products produced by this method include fibers to which particles are bound, and fibers which have been treated with the binder but to which particles are not bound.
대표청구항▼
Fibers that will adhere particles, comprising: fibers that have hydrogen bonding functional sites; and a binder mixed with the fibers, the binder having a volatility less than water, the binder also having a functional group that is capable of forming a hydrogen bond with the fibers, and a functiona
Fibers that will adhere particles, comprising: fibers that have hydrogen bonding functional sites; and a binder mixed with the fibers, the binder having a volatility less than water, the binder also having a functional group that is capable of forming a hydrogen bond with the fibers, and a functional group that is capable of forming a hydrogen bond or coordinate covalent bond with particles, wherein the particles have a hydrogen bonding or a coordinate covalent bonding functionality, the binder having formed a non-covalent bond with the fibers and being present in an inactive form in a sufficient amount to bind the particles by non-covalent bonds to the fibers in an amount of at least 1% by weight of the binder, particles and fibers after the binder is activated.
Medoff, Marshall; Lagace, Arther P., Compositions and composites of cellulosic and lignocellulosic materials and resins, and methods of making the same.
Medoff, Marshall; Lagace, Arthur P., Compositions and composites of cellulosic and lignocellulosic materials and resins, and methods of making the same.
Fujimaru, Hirotama; Ishizaki, Kunihiko; Nakahara, Sei, Polyacrylic acid (salt) water-absorbent resin, production process thereof, and acrylic acid used in polymerization for production of water-absorbent resin.
Kainth,Arvinder Pal Singh; Dodge, II,Richard Norris; Feldkamp,Joseph Raymond; Mundschau,Stacy Averic; Ostgard,Estelle Anne, Superabsorbent materials having low, controlled gel-bed friction angles and composites made from the same.
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